Packaging insert



FIG. 1 is a top-right-front perspective view of a packaging insert;

FIG. 2 is a top-left-rear perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevation view thereof, the rear elevation view, right side elevation view, and left side elevation view being identical thereof; and,

FIG. 5 is a bottom plan view thereof.

The broken lines are shown for the purpose of illustrating parts of the packaging insert that form no part of the claimed design. 

CLAIM The ornamental design for a packaging insert, as shown and described. 